Modifications of the Cb>70b> molecule (fullerene) under swift heavy ion irradiation are investigated. Cb>70b> thin films were irradiated with 120 MeV Au ions at fluences from 1 × 10p>12p> to 3 × 10p>13p> ions/cmp>2p>. The energetic ion impacts lead to the destruction of the Cb>70b> molecule. To investigate the stability of Cb>70b> fullerene, the damage cross-section and radius of the damaged cylindrical zones are evaluated by fitting the evanescence of Cb>70b> vibration modes recorded by Raman spectroscopy. Conductivity measurements together with Raman and optical absorption studies revealed that an irradiation fluence of 3 × 10p>13p> ions/cmp>2p> results in complete amorphization of the carbon structure of the fullerene molecules.